NBCU in a Comcast World: No NBC?

Broadcasting & Cable’s Claire Atkinson writes about some rumor mongering regarding aspects of a GE Comcast deal for NBCU…

The dealing, however, may not be done. One Wall Street player confirmed market rumors that bankers have already descended on the MSO’s Philadelphia headquarters to work with management on selling the NBC Network and stations to a third party. Comcast had no immediate comment on that still-hypothetical possibility.

Sell NBC? How would that work exactly? You can’t really sell NBC without doing something about MSNBC and CNBC as well since there’s bleedover between the three networks. I don’t see how one could sell NBC without partially damaging CNBC and positively crippling MSNBC.